Wheelchair auxiliary structure
By designing a movable shoulder and waist positioning frame on the wheelchair, the problem of skewing in the wheelchair by patients with ALS patients is solved, and spinal and tail vertebrae damage is avoided, which improves the sense of use and safety.
Patent Information
- Application Number
- CN202421891845.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-06
AI Technical Summary
Patients with ALS are prone to skew in wheelchairs, resulting in spinal and tail vertebrae damage, affecting the comfort and safety of long-term use.
A wheelchair assist structure is designed, including a movable shoulder positioning frame and a waist positioning frame. Through the cooperation of the installation structure and the adjustment rod, it can be adapted to patients of different body types and maintain the correct posture.
It effectively avoids secondary damage caused by the patient's spine and tail vertebrae due to incorrect sitting posture, improves the patient's sense of use and safety, and is suitable for patients of different body types.
Smart Images
Figure CN222942556U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wheelchairs, in particular to a wheelchair auxiliary structure. Background Art
[0002] A wheelchair is a type of mobility device designed for people with limited mobility. It enables users to move freely indoors or outdoors, improving their quality of life and independence. Depending on the usage scenario, wheelchairs can be divided into two types: indoor wheelchairs and outdoor wheelchairs. Indoor wheelchairs are usually smaller and lighter, suitable for use in homes, hospitals and other places; while outdoor wheelchairs are larger and more stable, suitable for use in public places and streets.
[0003] Most existing wheelchairs are usually composed of seats, wheels, push rods and brakes. When ALS patients sit in wheelchairs, ALS will cause muscles to gradually atrophy and become weak, eventually leading to the patient's inability to control body movements and language ability. Patients may feel muscle weakness, fatigue and loss of balance. Eventually, they may completely lose their ability to move and speak, and have no ability to take care of themselves. Therefore, ALS patients are prone to tilting in wheelchairs, causing damage to the patient's spine and coccyx due to their incorrect sitting posture. This affects the patient's sense of use when sitting in a wheelchair for a long time. Utility Model Content
[0004] In view of the above problems, the present application provides a wheelchair auxiliary structure.
[0005] To achieve the above-mentioned purpose, the present application provides the following technical solution: a wheelchair auxiliary structure, comprising a seat cushion and a backrest connected to the seat cushion, a pair of movable shoulder positioning frames are provided on the side of the backrest facing the patient, and a pair of movable waist positioning frames are provided directly below the shoulder positioning frames.
[0006] Both ends of the backrest are connected with pillars, and each of the pillars is provided with two groups of mounting structures distributed from top to bottom, and the shoulder positioning frame and the waist positioning frame are both arranged on the mounting structures.
[0007] Furthermore, the mounting structure includes a positioning bracket arranged on the pillar, and the positioning bracket is provided with an extension plate, and the extension plates distributed from top to bottom are located on both sides of the backrest.
[0008] Furthermore, the installation structure also includes an adjustment rod arranged on the side of the shoulder positioning frame and the waist positioning frame facing the pillar, and the extension plate is provided with an alignment sleeve that can accommodate the adjustment rod to pass through, and the alignment sleeve is provided with upper and lower sets of limiting convex plates.
[0009] Furthermore, the adjusting rods are each provided with an extension sleeve, the extension sleeve is a hollow structure, and the alignment sleeve is each provided with a channel for accommodating the exposed extension sleeve.
[0010] A center block is provided at the center of the cavity of the extension sleeve, pressure springs are provided on both sides of the center block, positioning studs are provided at the ends of the pressure springs away from the center block, the positioning studs are located on the outside of the extension sleeve, rotatable adjustment rings are provided on the positioning studs, and a pair of blocks distributed along the diameter direction thereof are provided on the adjustment ring, and in a natural state, the blocks are located on the inner side of the gap of the limiting convex plate.
[0011] Furthermore, the shoulder positioning frame and the waist positioning frame are both provided with guide rods on one side facing the pillar, and the positioning brackets are both provided with guide sleeves into which the guide rods can be placed.
[0012] Furthermore, a rubber strip is provided at the top of the shoulder positioning frame, and a waist contact is provided on the side of the waist positioning frame facing the patient.
[0013] In summary, the technical effects and advantages of the utility model are:
[0014] The utility model is provided with a movable waist positioning frame on the wheelchair. The shoulder positioning frame and the waist positioning frame can straighten the patient's shoulders and waist, so that the patient who is not able to take care of himself can maintain a correct posture in the wheelchair, and avoid the patient's spine and coccyx from being injured again due to incorrect sitting posture, which has a protective effect on the patient. At the same time, a mounting structure that can drive the shoulder positioning frame and the waist positioning frame to move is provided, and adaptive adjustment can be made according to the patient's body shape, which has the advantage of portable adjustment, so that the auxiliary structure is suitable for patients of different body shapes. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.
[0017] Figure 2 This is a schematic diagram of the structure of the utility model from a second viewing angle.
[0018] Figure 3 This is a schematic diagram of the structure of the shoulder positioning frame and the waist positioning frame of the utility model.
[0019] Figure 4 This is a schematic structural diagram of the shoulder positioning frame and the waist positioning frame of the utility model from a second viewing angle.
[0020] Figure 5It is a schematic diagram of the structure of the alignment sleeve and the limiting convex plate after being cut open.
[0021] Figure 6 For this utility model Figure 5 Enlarged structural diagram at A in the middle.
[0022] In the figure: 1. seat cushion; 2. backrest; 3. shoulder positioning frame; 31. rubber strip; 4. waist positioning frame; 41. waist contact pad; 42. adjustment rod; 43. guide rod; 44. extension sleeve; 45. center block; 46. pressure spring; 47. positioning column head; 48. adjustment ring; 49. clamping block; 5. pillar; 6. positioning bracket; 61. guide sleeve; 7. extension plate; 71. alignment sleeve; 72. limiting convex plate. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] Example: Reference Figure 1 , Figure 2 and Figure 3 The wheelchair auxiliary structure shown in the figure comprises a seat cushion 1 and a backrest 2 connected to the seat cushion 1, a pair of movable shoulder positioning frames 3 are arranged on the side of the backrest 2 facing the patient, and a pair of movable waist positioning frames 4 are arranged directly below the shoulder positioning frames 3. The shoulder positioning frames 3 and the waist positioning frames 4 can straighten the shoulders and waist of the patient, so that the patient who is not able to take care of himself can maintain a correct posture in the wheelchair, and avoid the patient's spine and coccyx from being injured again due to incorrect sitting posture, which has a protective effect on the patient and improves the comfort of the patient sitting in the wheelchair for a long time.
[0025] Both ends of the backrest 2 are connected to support columns 5, and each support column 5 is provided with two sets of mounting structures distributed from top to bottom. The shoulder positioning frame 3 and the waist positioning frame 4 are both arranged on the mounting structure. The mounting structure can maintain the stability of the shoulder positioning frame 3 and the waist positioning frame 4. At the same time, the mounting structure is adjustable and can be adaptively adjusted according to the patient's body shape. It has the advantage of portable adjustment, so that the auxiliary structure is suitable for patients of different body shapes.
[0026] like Figure 4 , Figure 5 and Figure 6As shown, the mounting structure includes a positioning bracket 6 arranged on a pillar 5, and an extension plate 7 is arranged on each positioning bracket 6. The extension plates 7 distributed from top to bottom are all located on both sides of the backrest 2. The pillar 5 is arranged on the frame of the wheelchair to maintain the stability of the mounting structure.
[0027] like Figure 4 , Figure 5 and Figure 6 As shown, the mounting structure further includes an adjustment rod 42 disposed on the shoulder positioning frame 3 and the waist positioning frame 4 facing the side of the pillar 5, and an alignment sleeve 71 capable of accommodating the adjustment rod 42 passing through is disposed on the extension plate 7, and the alignment sleeve 71 is provided with upper and lower sets of limiting convex plates 72. The adjustment rod 42 slides in the alignment sleeve 7, which can cause the alignment sleeve 7 through which the adjustment rod 42 passes to move, so as to achieve the purpose of straightening the patient's shoulders and waist, avoiding the patient from tilting in the wheelchair, and improving the safety of patients who are not able to take care of themselves in the wheelchair.
[0028] like Figure 1 , Figure 2 As shown, the adjusting rod 42 is provided with an extension sleeve 44 , which is a hollow structure, and the alignment sleeve 71 is provided with a channel for accommodating the exposed extension sleeve 44 .
[0029] A center block 45 is provided at the center of the cavity of the extension sleeve 44, and pressure springs 46 are provided on both sides of the center block 45. A positioning column head 47 is provided at one end of the pressure spring 46 away from the center block 45. The positioning column heads 47 are located on the outside of the extension sleeve 44. A rotatable adjustment ring 48 is provided on the positioning column heads 47, and a pair of clamping blocks 49 distributed along the diameter direction thereof is provided on the adjusting ring 48.
[0030] In a natural state, the block 49 is located inside the gap of the limiting convex plate 72. According to the actual use needs of the patient, the positioning column head 47 can be pulled to make the positioning column head 47 away from the extension sleeve 44. At this time, the pressure spring 46 is in a stretched state. Then, the adjustment ring 48 can be rotated to cause the block 49 to rotate and offset the limiting convex plate 72. Then, the adjustment rod 42 and the extension sleeve 44 can be controlled to slide synchronously, and the adjustment rod 42 and the shoulder positioning frame 3 and the waist positioning frame 4 can be moved to the specified position.
[0031] When the adjusting rod 42 moves to the specified position, the adjusting ring 48 can be controlled to rotate again, so that the block 49 is facing the gap of the limiting convex plate 72. Then, under the elastic potential energy of the pressure spring 46, the block 49 can fall into the gap of the limiting convex plate 72 again, limiting the adjusting rod 42 and avoiding the shoulder positioning frame 3 and the waist positioning frame 4 from being offset.
[0032] like Figure 1 , Figure 2As shown, the shoulder positioning frame 3 and the waist positioning frame 4 are both provided with a guide rod 43 on one side facing the pillar 5, and the positioning bracket 6 is provided with a guide sleeve 61 for accommodating the guide rod 43. The connection between the guide sleeve 61 and the guide rod 43 has a supporting effect on the shoulder positioning frame 3 and the waist positioning frame 4, which can effectively prevent the shoulder positioning frame 3 and the waist positioning frame 4 from being deformed under pressure, and improve the structural strength of the shoulder positioning frame 3 and the waist positioning frame 4.
[0033] like Figure 1 , Figure 2 As shown, in order to improve the comfort of the patient when in contact with the shoulder positioning frame 3 and the waist positioning frame 4 and to avoid friction damage to the patient's skin due to long-term contact between the two, a rubber strip 31 is provided at the top of the shoulder positioning frame 3, and a waist contact pad 41 is provided on the side of the waist positioning frame 4 facing the patient.
[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A wheelchair auxiliary structure, comprising a seat cushion (1) and a backrest (2) connected to the seat cushion (1), characterized in that: A pair of movable shoulder positioning frames (3) are provided on the side of the backrest (2) facing the patient, and a pair of movable waist positioning frames (4) are provided directly below the shoulder positioning frames (3); Both ends of the backrest (2) are connected to pillars (5), and each of the pillars (5) is provided with two groups of mounting structures distributed from top to bottom, and the shoulder positioning frame (3) and the waist positioning frame (4) are both arranged on the mounting structures.
2. The wheelchair auxiliary structure according to claim 1, characterized in that: The mounting structure comprises a positioning bracket (6) arranged on a support column (5), and an extension plate (7) is arranged on the positioning bracket (6). The extension plates (7) distributed from top to bottom are located on both sides of the backrest (2).
3. The wheelchair auxiliary structure according to claim 2, characterized in that: The mounting structure further comprises an adjustment rod (42) arranged on the side of the shoulder positioning frame (3) and the waist positioning frame (4) facing the pillar (5); the extension plate (7) is provided with an alignment sleeve (71) capable of accommodating the adjustment rod (42) to pass through; the alignment sleeve (71) is provided with upper and lower sets of limiting convex plates (72).
4. The wheelchair auxiliary structure according to claim 3, characterized in that: The adjusting rod (42) is provided with an extension sleeve (44), the extension sleeve (44) is a hollow structure, and the alignment sleeve (71) is provided with a channel for accommodating the exposed extension sleeve (44); A center block (45) is provided at the center of the cavity of the extension sleeve (44), pressure springs (46) are provided on both sides of the center block (45), and a positioning column head (47) is provided at one end of the pressure spring (46) away from the center block (45). The positioning column head (47) is located on the outside of the extension sleeve (44), and a rotatable adjustment ring (48) is provided on the positioning column head (47). The adjustment ring (48) is provided with a pair of blocks (49) distributed along the diameter direction thereof, and in a natural state, the blocks (49) are located on the inner side of the gap of the limiting convex plate (72).
5. The wheelchair auxiliary structure according to claim 2, characterized in that: The shoulder positioning frame (3) and the waist positioning frame (4) are both provided with a guide rod (43) on one side facing the support (5), and the positioning bracket (6) is provided with a guide sleeve (61) capable of accommodating the guide rod (43) therein.
6. The wheelchair auxiliary structure according to claim 1, characterized in that: The top of the shoulder positioning frame (3) is provided with a rubber strip (31), and the side of the waist positioning frame (4) facing the patient is provided with a waist contact pad (41).